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. 2005 Oct 28;90(2):681–692. doi: 10.1529/biophysj.105.061010

FIGURE 8.

FIGURE 8

Representative force-extension data (points) without (A and C) and with (B and D) a dead zone are compared to fits (curves) by the three polymer elastic models (Eq. 10) of P-selectin-G1 complex (A and B) and L-selectin-sPSGL-1 complex (C and D). The best-fit FJC model parameters for the data in the four panels are, respectively, L = 51.1 nm and l = 0.18 nm (A), L = 37.9 nm and l = 1.02 nm (B), L = 26.3 nm and l = 0.11 nm (C), and L = 78.0 nm and l = 0.72 nm (D). The best-fit WLC model parameters for the data in the four panels are, respectively, L = 498 nm and l = 0.01 nm (A), L = 60.1 nm and l = 0.27 nm (B), L = 64.2 nm and l = 0.02 nm (C), and L = 112 nm and l = 0.07 nm (D). The best-fit MFJC model parameters and the molecular spring constant estimates by the stretch method are presented in the text. Parts of the MFJC (dashed curve) and WLC (dotted curve) models in panel A and the WLC (dotted curve) in panel B are obscured by the FJC (solid curve).